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A three-decade-old policy limiting most couples to one child has made abortion a widely used method for controlling family size.
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计划生育条例已实行30年了，它限制大多数夫妇只能生育一个孩子，是控制人口膨胀的有力武器。 |
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A three-dimensional numerical simulation is used to predict the exhaust gas diffusion from a tunnel portal under different wind velocity and direction.
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摘要采用三维数值模拟的方法，对隧道峒口废气的扩散情况进行了预测和分析，揭示了在不同风速和风向条件下，峒口废气的扩散特征。 |
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A three-dimensional simulation of current flow in a bipolar transistor. (Image courtesy of the National Coordination Office for Information Technology Research and Development.
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模拟双极性电晶体的三维电流流动（感谢国家资讯科技与研发协调办公室提供）。 |
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A three-kilometer __8__ zone has been established around the affected farm as well as a ten-kiometer __9__ area.
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一三千米的隔离带已经在受疾病感染的农场附近建立，同时一万米监控带也已建立。 |
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A three-kilometer exclusion zone has been established around the affect ed farm as well as a ten-kilometer surveillance area.
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政府已经在感染口蹄疫的农场周围建立起了一个半径3公里的隔离区，以及一个半径10公里的监视区域。 |
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A three-kilometer exclusion zone has been established around the affected farm as well as a ten-kilometer surveillance area.
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三公里的隔离带在农场周围建立起来，而且划出了10公里的检测带。 |
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A three-kilometer exclusion zone has been established around the affected farm as well as a ten-kiometer surveillance area.
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一三千米的隔离带已经在受疾病感染的农场附近建立，同时一万米监控带也已建立。 |
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A three-kilometer isolated zone has been established around the affected farm as well as a ten-kiometer control area.
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一三千米的隔离带已经在受疾病感染的农场附近建立，同时一万米监控带也已建立。 |
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A three-kilometer seclusion zone has been established around the affected farm as well as a ten-kilometers surveillance area.
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目前，围绕爆发疫情的农场已划出半径3公里的隔离区以及10公里的疫情监控区域。 |
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A three-month-old goshawk screeches in Fairbanks, Alaska.
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在美国阿拉斯加州的费尔班克斯,一只三个月大的苍鹰尖声喊叫. |
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A three-phase hybrid stepping motor pulse subdivision controller based on TMS320LF2407 DSP is designed based on this theory.
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基于这一理论开发出以电机控制专用的数字信号处理器芯片TMS320LF2407为核心的三相混合式步进电机脉冲细分控制器。 |
